Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV16)
Publication date: 28th March 2016
The identification of new organic semiconducting molecules has been a crucial factor driving improvements in organic thin-film transistors (OTFTs) and great achievements have been reported.1 Recently, there has been increased interest in the stability and processability of OTFT devices, in addition to the conventional focus on device performances. Organic molecules soluble in organic solvents are promising materials for inexpensive device fabrication since they can be processed by simple solution techniques such as spincoating, drop-casting, or inkjet-printing.2 To date, most efforts to synthesize soluble semiconducting molecules have focused on polymeric conjugated systems.3 Among the soluble oligomers reported to date, the functionalized pentacene has one of the greatest potentials as a semiconducting material.4 Adding bulky triisopropylsilylethynyl (TIPS) groups at the 6,13-positions of the pentacene not only improves the π-orbital overlap but also enhances the solubility and the oxidative stability of the material. Moreover, solution-deposited OTFT device properties with use of functionalized pentacene and anthradithiophene were reported.
In this study, new soluble anthracene derivatives containing thienopyrroledione (TPD) derivatives were synthesized via well-known synthetic routes. TIPS derivatives were added at the 9,10-positions of anthracene for the solubility and crystallinity. Structural characterization was achieved using 1H and 13C NMR, MS techniques. Molecular weight and polydispersity index were determined via GPC analysis. Thermal properties were determined using TGA and DSC analysis. The optical properties of all polymers were investigated by UV-Vis absorption spectroscopy on dilute chloroform solutions and The HOMO and LUMO energy levels (vs. vacuum) of the polymers were determined from the onsets of oxidation and reduction. The onsets were determined via cyclic voltammetry measurements, which were conducted on drop-cast polymer films in acetonitrile with tetrabutylammonium perchlorate as the electrolyte. As a result, the soluble anthracene core (TIPSAnt) is a potential precursor for the synthesis of novel semiconducting materials.
1. (a) Li, Y.; et all. AdV. Mater. 2006, 18, 3029. (b) Mcculloch, I. et all.; Nat. Mater. 2006, 5, 328. (c) Takimiya, K.; et all. J. Am. Chem. Soc. 2006, 128, 12604.
2.(a) Kraft, A.; et all. Angew. Chem., Int. Ed. 1998, 37, 402. (b) Murphy, A. R et all. J. Am. Chem. Soc. 2004, 126, 1596.
3. (a) Shim, H.-K.; Jin J. I. AdV. Polym. Sci. 2002, 158, 1942. (b) Kim,Y. M.; et all Macromolecules 2006, 39, 4081.
4. (a) Anthony, J. E.; et all Org. Lett. 2002, 4, 15. (b) Sheraw, C. D. et all AdV. Mater. 2003, 15, 2009.
nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.
Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.
International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.
The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.